No ortho-projection possible!




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    Götz Echtenacher
    Hi ii3D,

    I never experienced this because I usually simplify significantly before texturing and creating orthophotos.
    But I did manage to create some from 700M+ models that were UNtextured.
    Does that work for you or does it also crash?
    It might help to pinpoint the bug...

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    I'm lso having issues with exported orthos not being in the project coordinate system.

    RealityCapture version RC

    Here is an image showing the Application Settings coordinate system:

    this one shows the control point coordinate system (same as application settings):

    this one shows that the component is geo-referenced:

    This one shows the settings for the Ortho Projection Tool:

    In the help documentation is says to use top if exporting to GIS. I also created orthos using Map and Arbitrary and exported to compare world files. The world file is the same for all 3.

    This shows the export ortho projection options:

    I have tried with projected, global, and image. The results are the same.

    Here is the contents of the world file:


    I also exported a projection parameter files, here is the content of it:

    <OrthoProjection width="1932" height="2602" name="Ortho projection map" modelName="Model 5"
       modelGuid="{295E1024-5C58-4137-BD11-F4CC152C145B}" colorType="texturing"
       boxSideConerIndex="21" bEmpty="0" backFaceColorType="1" backFaceColor="2130706687"
       projectionType="3" bShowOrthoProjection="1">
      <Header magic="5787472" version="1"/>
    <ReconstructionRegion globalCoordinateSystem="+proj=longlat +datum=WGS84 +no_defs" globalCoordinateSystemName="epsg:32636 - WGS 84 / UTM zone 36N"
       isGeoreferenced="1" isLatLon="1" yawPitchRoll="0 0 0">
      <widthHeightDepth>96.6555868889593 130.120300787686 14.9366197588348</widthHeightDepth>
      <Header magic="5395016" version="2"/>
        <centre>0.606694346824674 0.550524940342791 85.3094461830333</centre>
      <Residual R="1 0 0 0 1 0 0 0 1" t="0 0 0" s="1"/>


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    This image shows that the coordinate read out for the cursor location on the ortho has the same coordinates for the UTM projection as it does for the GPS coordinates:



    The UTM coordinates should be more like this: N3491092.692; E667175.913.

    As indicated by the GCP:



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    Even though the Ortho Projection Tool indicated the Coordinate system as epsg:32636 - WGS 84 / UTM zone 36N, I open the Coordinate System dialog and scrolled down the list to epsg:32636 - WGS 84 / UTM zone 36N and selected it. When I did the coordinates for Centre updated to proper UTM coordinates. I rendered a new ortho and it exported correctly. This image shows the results of re-selecting the Coordinate system:

    You can see the coordinate read out for the cursor location on the ortho is also correct now.

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    Zuzana Ďuríčková CR

    Hello ii3D,

    Please excuse our late answer.

    Are you still experiencing problems with exporting ortho-photos?

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    It is pretty much working now. There is only one small issue. Sometimes the exported ortho is shifted slightly. This can be resolved by changing the pixel size and re-rendering and exporting the new ortho. There is more info on this towards the bottom of this thread:


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